Home / 14,090.80-19,442.78-8,122.72

Finding the Fourth Proportional to 14,090.80, 19,442.78 and 8,122.72

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Solution

The fourth proportional to 14,090.80, 19,442.78 and 8,122.72 is: 11,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,090.80 : 19,442.78 = 8,122.72 : x
  2. Step 2: Convert to fraction form
    14,090.80/19,442.78 = 8,122.72/x
  3. Step 3: Cross multiply
    14,090.80x = 19,442.78 × 8,122.72
  4. Step 4: Simplify right side
    14,090.80x = 157,928,257.96
  5. Step 5: Solve for x
    x = 157,928,257.96/14,090.80
  6. Step 6: Final answer
    x = 11,207.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.